Boston, Mass. -- Meagan Johnson, 16, of Andover reacts to the cold water in Dorchester Bay as her grandfather, Tom Furey, and her sister and cousin, Kelly Johnson, 14, and Leah Hart, left, follow her out of Dorchester Bay at the L Street Brownie swim on Jan. 1, 2011. The 2011 swim brought the largest crowd ever, with more than 700 swimmers and about 2,000 spectators, L Street Brownies president Jack Dever said. He attributed the larger crowd to the weather, with the air temperature at 54 degrees at the time of the 10 a.m. swim. The water, however, remained a frigid 34 degrees.